干旱区生态环境知识资源中心(Arid): Spatial ecology of female bighorn sheep in a prairie landscape in Nebraska

Arid

DOI	10.1002/jwmg.22201
	Spatial ecology of female bighorn sheep in a prairie landscape in Nebraska
	Wood, Erin; Nordeen, Todd; Inselman, Will M.; Mahoney, Peter J.; Benson, John F.
通讯作者	Benson, JF (corresponding author)，Univ Nebraska, 3310 Holdrege St, Lincoln, NE 68583 USA.
来源期刊	JOURNAL OF WILDLIFE MANAGEMENT
ISSN	0022-541X
EISSN	1937-2817
出版年	2022-02
英文摘要	Understanding the spatial ecology of small populations at the periphery of their range is important for identifying factors limiting population growth and developing sound management strategies. Bighorn sheep were reintroduced to Nebraska in 1981 and persist in a small population at the easternmost extent of the distribution of the species, where 1 of the 2 subpopulations is declining. Bighorn sheep space use and movement has been studied extensively in mountain and desert populations, but information is sparse from prairie populations in the Northern Great Plains. We investigated the spatial ecology of female bighorn sheep in Nebraska, USA, with global positioning system (GPS) telemetry. We tested the hypothesis that space use and movements would vary across seasons, years, and individuals but predicted that migration would involve relatively short distances in this translocated population (relative to native populations) occupying a fragmented landscape. Overall, females used smaller seasonal home ranges (3.3-7.8 km(2)) than most of those reported previously for the species and exhibited a high degree of variability in space use and movements across seasons, subpopulations, and individuals. Most females (92-100%) exhibited fidelity to their home ranges across seasons and years. Six females migrated between spatially distinct core lambing and winter ranges, although the distances (range = 7.9-8.7 km) and mean elevations (range = 31-41 m) between these core seasonal ranges were less than those reported for most native, migratory bighorn sheep populations. After accounting for variation in season, subpopulation, and years, home range size was positively associated with road density in both subpopulations (P < 0.001), suggesting that females incur greater energetic costs associated with greater space use in areas of higher fragmentation. Our results establish the basic spatial ecology of female bighorn sheep in Nebraska where their behavior appears to reflect the isolated nature of suitable habitat in this fragmented prairie landscape.
英文关键词	bighorn sheep escape terrain fragmentation home range migration movement Nebraska Northern Great Plains Ovis Canadensis
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000759995200001
WOS关键词	HOME-RANGE ; RESOURCE SELECTION ; HABITAT USE ; SPACE USE ; DESERT ; MIGRATION ; POPULATION ; EVOLUTION ; RESPONSES ; COYOTES
WOS类目	Ecology ; Zoology
WOS研究方向	Environmental Sciences & Ecology ; Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377237
作者单位	[Wood, Erin; Mahoney, Peter J.; Benson, John F.] Univ Nebraska, Sch Nat Resources, 3310 Holdrege St, Lincoln, NE 68583 USA; [Nordeen, Todd] Nebraska Game & Pk Commiss, 299 Husker Rd, Alliance, NE 69301 USA; [Inselman, Will M.] Nebraska Game & Pk Commiss, 2200 N 33rd St, Lincoln, NE 68503 USA
推荐引用方式 GB/T 7714	Wood, Erin,Nordeen, Todd,Inselman, Will M.,et al. Spatial ecology of female bighorn sheep in a prairie landscape in Nebraska[J],2022.
APA	Wood, Erin,Nordeen, Todd,Inselman, Will M.,Mahoney, Peter J.,&Benson, John F..(2022).Spatial ecology of female bighorn sheep in a prairie landscape in Nebraska.JOURNAL OF WILDLIFE MANAGEMENT.
MLA	Wood, Erin,et al."Spatial ecology of female bighorn sheep in a prairie landscape in Nebraska".JOURNAL OF WILDLIFE MANAGEMENT (2022).